none
Win 7 Pro does not recognize new external HDD

    Question

  • I recently purchased a Toshiba Stor.e alu2 500GB external hard drive.  When I connected it (USB) Win 7 would not recognize it.  I did a Rescan Disks and it still did not "show up".  My HPE 410f desktop came with Windows 7 Pro installed 2 years ago and I have other older external Iomega drives which are recognized (NTFS) and one Iomega (FAT16 or 32) which is listed but always opens with a message that it needs to be formatted (there is a lot of data on it so I haven't done anything yet). First question: How do I get Win7 to recognize new Toshiba external hard drive?

    SPS5

    Thursday, October 04, 2012 4:26 PM

Answers

  • Hi,


    You can also test whether other computer could recognize this new external hard drive to check the result.


    Meanwhile, please also try the following steps.

     

    1. Upgrade the Chipset driver and Motherboard driver.

    2. Reinstall USB Controllers to test the issue


        Reinstall USB controllers

        ====================

        Note: If you are using a USB mouse, please follow the "Use the Keyboard" steps to reinstall USB controllers. Windows 7 will reinstall all controllers automatically after restarting your computer.

     

        Use the Mouse

         --------------

        First, please disconnect all USB devices and then perform the following steps:

     

        1. Click "Start", type "Device Manager" (without the quote) in the Search bar and press "Enter". Click Continue if necessary.

        2. In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the "Host Controller", click "Uninstall" and click "OK".

        3. Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".

     

        Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.

     

        Use the Keyboard

        -----------------

        First, please disconnect all USB devices. Then, go through the following steps:

     

        1. Press "Ctrl + Esc" to open the Start Menu.

        2. Type Device Manager in the Search bar and press "Enter". Click Continue if necessary.

        3. In Device Manger, press Tab and use "Up" and "Down" to move the highlight to "Universal Serial Bus Controllers".

        4. Press "Right" and expand it.

        5. Press "Down" to move to the first item and press "Delete" to remove it.

        6. Repeat the step 5 and uninstall all items under "Universal Serial Bus Controllers".


    Hope this helps.


    Vincent Wang

    TechNet Community Support

    Monday, October 08, 2012 9:28 AM
    Moderator

All replies

  • Check that the drive appears in Device Manager. Then go to Disk Management and initialise, partition, format and assign drive letter(s) to it.

    Only partitions with assigned drive letters will appear in Windows Explorer.

    Thursday, October 04, 2012 5:06 PM
  • Thanks for your response.  Drive does not appear anywhere, that's what is so frustrating; not even as unknown device.

    SPS5

    Thursday, October 04, 2012 6:46 PM
  • Thursday, October 04, 2012 9:22 PM
  • Adding on other advise, the description given as in drive not detected & it prompt you to format, sounds like symptom of a failing drive (though is new like what you claim) 

    You might want to download a diagnostic utility & run a test on the drive or alternatively contact toshiba & let them test the drive for defect, if there's indeed problem with the drive, likely they would do a 1-1 exchange or rma for you since is new


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

    Saturday, October 06, 2012 12:55 AM
    Answerer
  • Hi,


    You can also test whether other computer could recognize this new external hard drive to check the result.


    Meanwhile, please also try the following steps.

     

    1. Upgrade the Chipset driver and Motherboard driver.

    2. Reinstall USB Controllers to test the issue


        Reinstall USB controllers

        ====================

        Note: If you are using a USB mouse, please follow the "Use the Keyboard" steps to reinstall USB controllers. Windows 7 will reinstall all controllers automatically after restarting your computer.

     

        Use the Mouse

         --------------

        First, please disconnect all USB devices and then perform the following steps:

     

        1. Click "Start", type "Device Manager" (without the quote) in the Search bar and press "Enter". Click Continue if necessary.

        2. In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the "Host Controller", click "Uninstall" and click "OK".

        3. Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".

     

        Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.

     

        Use the Keyboard

        -----------------

        First, please disconnect all USB devices. Then, go through the following steps:

     

        1. Press "Ctrl + Esc" to open the Start Menu.

        2. Type Device Manager in the Search bar and press "Enter". Click Continue if necessary.

        3. In Device Manger, press Tab and use "Up" and "Down" to move the highlight to "Universal Serial Bus Controllers".

        4. Press "Right" and expand it.

        5. Press "Down" to move to the first item and press "Delete" to remove it.

        6. Repeat the step 5 and uninstall all items under "Universal Serial Bus Controllers".


    Hope this helps.


    Vincent Wang

    TechNet Community Support

    Monday, October 08, 2012 9:28 AM
    Moderator